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stellarik [79]
2 years ago
8

How many seasons are there in a year

Physics
2 answers:
Marianna [84]2 years ago
7 0
Four seasons
Summer winter autumn and spring
Elena-2011 [213]2 years ago
4 0

Answer:

There are 4

Explanation:

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Which of the following statements about globular clusters is true? All stars in the cluster have approximately the same mass. Al
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Most stars in the cluster are yellow or reddish in color. Most

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Temperature of a substance is proportional to the average kinetic energy of the motion of the molecules of that substance.
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True, according to the Kinetic Molecular Theory.
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3 years ago
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I really need help like a lot I only got 2 days so I need help, and the answer has to be right, please!
koban [17]

Answer:

1. Wave period = 0.962 s

2. Will absorb red and blue and reflect green

Explanation:

1.

The wave period is:

T = \frac{\lambda }{v} \\Where: \\T: Wave period \\ \lambda : Wavelength \\v: velocity

Wavelength is the distance between crests. So replacing the given information:

T = \frac{2.50}{2.60} = 0.962 s\\

2. In simple words the color of an object is the light it reflects. A green object reflects green light, and the rest is absorbed (red and blue).

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3 years ago
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How could the action force of a canoe moving through water be increased?.
BaLLatris [955]
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4 0
3 years ago
Two samples of water are mixed together.
horrorfan [7]

Let the cold water go up x degrees.

Let the hot water go down 100 - x degrees.

The formula for heat exchange is m*c*delta t

Givens

Ice

deltat = x

m = 0.50 kg

c = 4.18

Hot water

deltat = 100 - x

m = 1.5 kg

c = 4.18

Formula

The heat up = heat down

0.50 * c * x = 1.5 * c * (100 - x)            Divide both sides by c

Solution

0.50 *x = 1.5*(100 - x)                          Remove the brackets.

0.5x = 150 - 1.5x                                  Add 1.5x to both sides.

0.5x + 1.5x = 150 - 1.5x + 1.5x             Combine like terms  

2x = 150                                               Divide by 2

x = 75

Answer

A

6 0
3 years ago
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